Maserati President and CEO Harald Wester (L) speaks as the Maserati Kubang SUV is unveiled at the Detroit auto show.(MIKE CASSESE/REUTERS/Mike Cassese)

The Maserati Kubang SUV was unveiled during the final press preview day for the North American International Auto Show in Detroit.(MIKE CASSESE/REUTERS/Mike Cassese)

2013 Subaru Impreza AWD(MIKE CASSESE/REUTERS/Mike Cassese)

Fiat 500(Paul Sancya/AP Photo/Paul Sancya)

Chrysler 700 C concept van(REBECCA COOK/REUTERS/Rebecca Cook)

smart "for-us" concept car(MIKE CASSESE/REUTERS/Mike Cassese)

Toyota NS4 plug-in hybrid concept(Paul Sancya/AP Photo/Paul Sancya)

A camera is used instead of a rear view mirror on the Toyota NS4 plug-in hybrid concept car(MIKE CASSESE/REUTERS/Mike Cassese)

2013 Toyota Prius C(Paul Sancya/AP Photo/Paul Sancya)

Accord plug in hybrid concept car(REBECCA COOK/REUTERS/Rebecca Cook)

2013 Buick Encore crossover(MIKE CASSESE/REUTERS/Mike Cassese)

The Mercedes-Benz SLS AMG Roadster, which sells for $226,000, is displayed on the final press preview day for the North American International Auto Show in Detroit, Michigan, January 10, 2012.(MIKE CASSESE/REUTERS/Mike Cassese)

Lexus LF-LC concept(Carlos Osorio/AP Photo/Carlos Osorio)

Hyundai Turbo Veloster(REBECCA COOK/REUTERS/Rebecca Cook)

Ian Robertson, BMW Group's head of marketing, introduces the new 2013 MINI Roadster at the North American International Auto Show in Detroit.(TONY DING/AP Photo/Tony Ding)

Rear view of the new Mini Roadster with the retractable roof mechanism shown during the first press preview day for the North American International Auto Show in Detroit, Michigan, January 9, 2012.(MIKE CASSESE/REUTERS/Mike Cassese)

Acura NSX hybrid concept car(MIKE CASSESE/REUTERS/Mike Cassese)

Acura NSX hybrid concept car(REUTERS/Mike Cassese)

Acura NSX hybrid concept car(REUTERS/Mike Cassese)

Acura ILX Concept is the precursor to an all-new Acura luxury compact sedan scheduled for launch in Canada in spring 2012.(Hand-out/HONDA CANADA INC.)

Audi Q3 Vail(REUTERS/Mike Cassese)

Volkswagen E-Bugster concept(Paul Sancya/AP Photo/Paul Sancya)

The BMW i8 concept is shown on the first press preview day at the North American International Auto Show in Detroit, Michigan, January 9, 2012.(REBECCA COOK/REUTERS/Rebecca Cook)

BMW Board Member Ian Robertson stands next to the new 2013 BMW 335i.(REBECCA COOK/REUTERS/Rebecca Cook)

2013 Dodge Dart(REBECCA COOK/REUTERS/Rebecca Cook)

Hyundai Vice President Seong Hyeon Park and John Krafick (R), CEO of Hyundai Motor America, pose with the 2012 Elantra after it won the North American Car of the Year award during the first press preview day at the North American International Auto Show in Detroit.(REBECCA COOK/REUTERS/Rebecca Cook)

2013 Mini Cooper exhibit is displayed at the North American International Auto Show in Detroit, Monday, Jan. 9, 2012.(Paul Sancya/AP Photo/Paul Sancya)